Home / 231,430.40-347,260.80-131,667.20

Finding the Fourth Proportional to 231,430.40, 347,260.80 and 131,667.20

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Solution

The fourth proportional to 231,430.40, 347,260.80 and 131,667.20 is: 197,566.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,430.40 : 347,260.80 = 131,667.20 : x
  2. Step 2: Convert to fraction form
    231,430.40/347,260.80 = 131,667.20/x
  3. Step 3: Cross multiply
    231,430.40x = 347,260.80 × 131,667.20
  4. Step 4: Simplify right side
    231,430.40x = 45,722,857,205.76
  5. Step 5: Solve for x
    x = 45,722,857,205.76/231,430.40
  6. Step 6: Final answer
    x = 197,566.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.